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TSPY_SYLONIF.A

January 15, 2014
 Modified by: Rika Joi Gregorio
 ALIASES:

TrojanSpy:MSIL/Sylonif.A(Microsoft), Trojan-PWS.MSIL(Ikarus), a variant of MSIL/Spy.Agent.IZ trojan(Eset)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size:

89,616 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

02 Oct 2013

Arrival Details

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This spyware drops the following files:

  • {malware path}\SystemInfoLOG.html

NOTES:

After execution, this spyware displays {malware path}\SystemInfoLOG.html.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.526.03

FIRST VSAPI PATTERN DATE:

07 Jan 2014

VSAPI OPR PATTERN File:

10.527.00

VSAPI OPR PATTERN Date:

08 Jan 2014

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • {malware path}\SystemInfoLOG.html

Step 3

Scan your computer with your Trend Micro product to delete files detected as TSPY_SYLONIF.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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